Revert "Add FINAL and OVERRIDE macros for C++11 final/override."

src/globals.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 312 matching lines @@
 
 
 // FUNCTION_CAST<F>(addr) casts an address into a function
 // of type F. Used to invoke generated code from within C.
 template <typename F>
 F FUNCTION_CAST(Address addr) {
   return reinterpret_cast<F>(reinterpret_cast<intptr_t>(addr));
 }
 
 
-// Compiler feature detection.
-#if defined(__clang__)
-
-// Compatibility with older clang versions.
-# ifndef __has_extension
-# define __has_extension __has_feature
-# endif
-
-# if __has_extension(cxx_override_control)
-#  define V8_HAVE_CXX11_FINAL
-#  define V8_HAVE_CXX11_OVERRIDE
-# endif
-
-#elif defined(__GNUC__)
-
-// g++ requires -std=c++0x or -std=gnu++0x to support C++11 functionality
-// without warnings (functionality used by the macros below).  These modes
-// are detectable by checking whether __GXX_EXPERIMENTAL_CXX0X__ is defined or,
-// more standardly, by checking whether __cplusplus has a C++11 or greater
-// value. Current versions of g++ do not correctly set __cplusplus, so we check
-// both for forward compatibility.
-# if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
-#  if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)
-#   define V8_HAVE_CXX11_OVERRIDE
-#   define V8_HAVE_CXX11_FINAL
-#  endif
-# else
-// '__final' is a non-C++11 GCC synonym for 'final', per GCC r176655.
-#  if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)
-#   define V8_HAVE_GXX_FINAL
-#  endif
-# endif
-
-#elif defined(_MSC_VER)
-
-# if _MSC_VER >= 1400
-#  define V8_HAVE_CXX11_OVERRIDE
-// MSVC currently spells "final" as "sealed".
-#  define V8_HAVE_MSVC_SEALED
-# endif
-
-#endif
-
-
 #if __cplusplus >= 201103L
 #define DISALLOW_BY_DELETE = delete
 #else
 #define DISALLOW_BY_DELETE
 #endif
 
 
 // A macro to disallow the evil copy constructor and operator= functions
 // This should be used in the private: declarations for a class
 #define DISALLOW_COPY_AND_ASSIGN(TypeName)           \
@@ skipping 25 matching lines @@
 #endif
 #elif defined(_MSC_VER) && !defined(DEBUG)
 #define INLINE(header) __forceinline header
 #define NO_INLINE(header) header
 #else
 #define INLINE(header) inline header
 #define NO_INLINE(header) header
 #endif
 
 
-// Annotate a virtual method indicating it must be overriding a virtual
-// method in the parent class.
-// Use like:
-//   virtual void bar() OVERRIDE;
-#if defined(V8_HAVE_CXX11_OVERRIDE)
-#define OVERRIDE override
-#else
-#define OVERRIDE
-#endif
-
-
-// Annotate a virtual method indicating that subclasses must not override it,
-// or annotate a class to indicate that it cannot be subclassed.
-// Use like:
-//   class B FINAL : public A {};
-//   virtual void bar() FINAL;
-#if defined(V8_HAVE_CXX11_FINAL)
-#define FINAL final
-#elif defined(V8_HAVE_GXX_FINAL)
-#define FINAL __final
-#elif defined(V8_HAVE_MSVC_SEALED)
-#define FINAL sealed
-#else
-#define FINAL
-#endif
-
-
 #if defined(__GNUC__) && __GNUC__ >= 4
 #define MUST_USE_RESULT __attribute__ ((warn_unused_result))
 #else
 #define MUST_USE_RESULT
 #endif
 
 
 // Define DISABLE_ASAN macros.
 #if defined(__has_feature)
 #if __has_feature(address_sanitizer)
@@ skipping 55 matching lines @@
 // the backend, so both modes are represented by the kStrictMode value.
 enum StrictModeFlag {
   kNonStrictMode,
   kStrictMode
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_GLOBALS_H_